Improvement in horseshoe-calk sharpeners



. M. OOLTON. Horseshoe-Gall; Sharpener.

N o. 197,829. I Patented Dec. 4, 187?.

Eiiiilllllll'ggwgg IITN SSES ATTORN EYS" UNITED STATES PATENT OFFICE.

. MORGAN OOLTON, OF WOODSTOCK, ILLINOIS.

IMPROVEMENT IN HORSESHO E-CALK SHARPENERS.

Specification forming part of Letters Patent No. 197,829, dated December4, 1877; application filed October 27, 1877.

To all whom it may concern:

Be it known that I, lVIORGAN OoLToN, of I voodstock, in the county ofMcHenry and State of Illinois, have invented anew and valuableimprovement in machine for sharpen:

ing calks of horse and mule shoes without removing the shoes from thefeet; and I do hereby declare that the following is a full, clear, andexact description of the construc tion and operation of the same,reference being had to the annexed drawings, making a part of thisspecification, and to the letters and figures of reference markedthereon.

Figure l of the drawings is a perspective of my machine for sharpeningtoes and calks of horseshoes as applied. Fig. 2 is a plan view. Fig. 3is a transverse vertical sectional View. Fig. 4 is a perspective view ofthe case, and Fig. 5 is a perspective of the lever.

The nature of my invention consists in the construction and arrangementof a machine for sharpening the calks of horseshoes while on the horseshoofs, as will be hereinafter more fully set forth.

The annexed drawings, to which reference is made, fully illustrate myinvention.

A represents a stool, supported upon legs B, of any suitable height. 0represents a cast iron case attached to the top of the stool A, andworking thereon by a loose socketpivot, E, of any suitable construction.Within the case 0 is a longitudinal cross-bar, 0, having a deep recessor notch at each end, to receive two bars, D D, which are connected by abar, D. In the front ends of the arms D D are placed the journals of acylindrical file, G, and one of said journals is extended beyond themain frame or case for the attachment of a crank, H, by means of whichthe file is rotated. The file G lies between the front of the case andthe cross-bar G, and the bar D of the filefranie lies against the otherside of said bar 0. From the bar- D project two pins, to a, which entervertical slots on a: in the back of the case 0, and said pins aresurrounded by spiral springs b b. Fromthe center of the barplaced on topof the machine in such a mart ner that the calk to be sharpened iscaught between the file and the front of the cast-iron box, and byturning the file by means of the crank the calk is soon filed sharp. Thefile yields, according to the size of the calk, by means of the springs12.

The lever I is used to raise or lower the file, so as to cut a short orlong calk, said lever being adjusted by means of the bolt or set screwL. j

The loose socket-pivot E allows the machine to accommodate itself to anyposition in which the foot may be.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a machine for sharpening horseshoecalks, a cylindrical rotatingfile journaled in an adjustable yielding frame, and the whole arrangedin a self-adjusting box or case, sub stantially as and for the purposesset forth.

2. The box or case 0, carrying the entire operating mechanism,andsupported by aloose socket-pivot, substantially as and for thepurposes set forth.

3. The file-frame D D, carrying the cylindrical file G, provided withpins 64 a, and springs b b, and adjusted by means of a lever, I, andset-screw L, substantially as and for the purposes set forth.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

MORGAN COLTON.

WVitnesses J. A. PARRISH, G. WRIGHT.

